OPERATORS
Series
for potentially explosive atmospheres flameproof enclosure II 2 G Ex d IIC T6 .. T3, II 2D Ex tD A21 IP66 stainless steel or cast iron enclosure
NA NB
FEATURES • Explosionproof operator for use in potentially explosive atmospheres according to ATEX-Directive 94/9/EC EC type-examination certificate no.: BAS 02 ATEX 2157 • Compliance with the Essential Health and Safety Requirements of the ATEX Directive has been assured by compliance with European Standards EN 60079-0, EN 60079-1, EN 61241-0 and EN 61241-1 • Easy electrical installation by means of a screw terminal coil • Enclosure provided with a M20 x 1,5 (optionally 1/2 NPT) threaded entry hole for a broad range of cable entries • Ingress protection degree IP66 • A wide range of valves can be supplied with the operator
CONSTRUCTION Solenoid enclosure
NA NB
Core, core tube and plugnut Shading coil Nameplate Fasteners & screws Coil connection Safety code
q
Stainless steel (AISI 316L) Cast iron, epoxy coated Stainless steel Not applicable (1)(2) Stainless steel Stainless steel Screw terminals II 2 G Ex d IIC T6..T3 II 2 D Ex tD A21 IP66 T85°C-T200°C
ELECTRICAL CHARACTERISTICS Standard voltages (Other voltages and 60 Hz on request)
DC (=) : 24V - 48V - 240V AC (~) : 24V - 48V - 115V - 230V / 50 Hz
TEMPERATURE CLASSIFICATION TABLES DC (=) Solenoids
Pn (watt)
M25 (NA) M25 (NB)
solenoid size maximum ambient °C (3) surface temperature T6 T5 T4 T3 85°C 100°C 135°C 200°C Insulation class F (155°C) 100% E.D.
00131GB-2008/R01 Availability, design and specifications are subject to change without notice. All rights reserved.
14,2 (1) 14,2 (1) 17,05(2) 17,05(2)
• •
•
50
•
40
60 80 40 70
80 80 80
solenoid size maximum ambient °C (3) surface temperature
Pn (watt)
M25 (NA) M25 (NB)
AC (~) Solenoids
T6 T5 T4 T3 85°C 100°C 135°C 200°C Insulation class F (155°C) 100% E.D.
10,0 (1) 10,0 21,4 (2) 21,4 35,1 35,1
• • •
•
60 80 40 60
•
50
•
40
50
80 80 80 50
Check the wattage compabitility with the product selected. (1) AC (~) Full wave rectified coil onstruction (2) AC (~) Back wave rectified coil construction (3) The minimum allowable ambient temperature is -40°C for the operator. Actual temperature range can be limited depending on valve operation limits.
ORDERING INFORMATION A valve supplied with the explosionproof operator will be identified with prefix NA or NB before the catalogue number. Example :
NA ET B 307C008 230V/50 Hz voltage
operator conduit thread M20 x 1,5 pipe thread
basic number
OPTIONS • Non-polarised voltage surge suppressor for DC constructions • A 35,1 W DC, HC coil is available for battery voltages. Range +12% to -28% of nominal voltage (only available on NB construction) • A welded plugnut construction is available as an alternative to the standard closed tube construction (contact factory for details)
I
CONNECTIONS • Any ATEX approved dia. 9-12 mm cable entry device can be fitted in the M20 x 1,5: use prefix NAET or NBET; refer to the nameplate for maximum cable temperature (optionally 1/2 NPT / Ø 8,5-16 mm, use prefix NAT or NBT). • Internal and external earthing connection • The operator can be rotated 360° at 90° increments to select the most favourable position for cable entry
All leaflets are available on: www.asconumatics.eu V1011-1
OPERATORS II 2 G Ex d IIC T6..T3 II 2 D Ex tD A21 IP66 SERIES NA/NB MOUNTING BRACKET
Kit no: C115065 contents: stainless steel 304 SS screws and bracket
DIMENSIONS (mm), WEIGHT (kg) TYPE NA-NB Prefix "NA" and "NB" solenoids Stainless steel (NA) Cast iron, epoxy coated (NB) EN 60079-1 and EN 61241-1 II 2 G Ex d IIC - II 2D Ex tD A21 IP66
99
117
=
50 = 2 x M8
Ø9 115065 28
M 20 x 1,5
134
28
85 60
75
50
weight 4,8 4,8
60
1 2 mounting holes M5,
depth 9 mm
00131GB-2008/R01 Availability, design and specifications are subject to change without notice. All rights reserved.
prefix NA NB
62
All leaflets are available on: www.asconumatics.eu V1011-2
